Disagree. Being able to work with Scala doesn't mean you have to write Scala always (depending on how they structured/exposed it). And even if it does mean that

Disagree. Being able to work with Scala doesn't mean you have to write Scala always (depending on how they structured/exposed it). And even if it does mean that now, since it's on the JVM, it is not an unreasonable effort to create language-specific facades. Saying something "kills the startup" is extreme.